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photonstormphotonstorm
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Camera broken into components.
1 parent d804e05 commit 8cefdae

24 files changed

Lines changed: 511 additions & 444 deletions

‎v3/src/camera/Camera.js‎

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‎v3/src/camera/components/CameraToScreen.js‎

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var CameraToScreen = function (pointIn, pointOut)
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{
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var cameraMatrix = this.matrix.matrix;
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var mva = cameraMatrix[0];
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var mvb = cameraMatrix[1];
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var mvc = cameraMatrix[2];
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var mvd = cameraMatrix[3];
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var mve = cameraMatrix[4];
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var mvf = cameraMatrix[5];
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/* First Invert Matrix */
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var determinant = (mva * mvd) - (mvb * mvc);
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if (!determinant)
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{
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return pointIn;
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}
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determinant = 1 / determinant;
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var ima = mvd * determinant;
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var imb = -mvb * determinant;
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var imc = -mvc * determinant;
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var imd = mva * determinant;
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var ime = (mvc * mvf - mvd * mve) * determinant;
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var imf = (mvb * mve - mva * mvf) * determinant;
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var x = pointIn.x;
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var y = pointIn.y;
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if (!pointOut)
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{
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pointOut = {x: 0, y: 0};
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}
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/* Apply transform to point */
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pointOut.x = (x * ima + y * imc + ime);
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pointOut.y = (x * imb + y * imd + imf);
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return pointOut;
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};
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module.exports = CameraToScreen;

‎v3/src/camera/components/CenterToBounds.js‎

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var CenterToBounds = function ()
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{
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this.scrollX = (this._bounds.width * 0.5) - (this.width * 0.5);
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this.scrollY = (this._bounds.height * 0.5) - (this.height * 0.5);
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return this;
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};
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module.exports = CenterToBounds;

‎v3/src/camera/components/CenterToSize.js‎

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var CenterToSize = function ()
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{
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this.scrollX = this.width * 0.5;
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this.scrollY = this.height * 0.5;
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return this;
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};
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module.exports = CenterToSize;

‎v3/src/camera/components/Cull.js‎

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var Cull = function (renderableObjects)
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{
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if (this.disableCull)
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{
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return renderableObjects;
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}
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var scrollX = this.scrollX;
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var scrollY = this.scrollY;
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var cameraW = this.width;
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var cameraH = this.height;
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var culledObjects = this.culledObjects;
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var length = renderableObjects.length;
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var cameraMatrix = this.matrix.matrix;
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var mva = cameraMatrix[0];
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var mvb = cameraMatrix[1];
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var mvc = cameraMatrix[2];
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var mvd = cameraMatrix[3];
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var mve = cameraMatrix[4];
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var mvf = cameraMatrix[5];
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/* First Invert Matrix */
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var determinant = (mva * mvd) - (mvb * mvc);
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if (!determinant)
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{
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return renderableObjects;
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}
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determinant = 1 / determinant;
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culledObjects.length = 0;
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for (var index = 0; index < length; ++index)
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{
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var object = renderableObjects[index];
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if (!object.hasOwnProperty('width'))
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{
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culledObjects.push(object);
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continue;
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}
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var objectW = object.width;
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var objectH = object.height;
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var objectX = (object.x - (scrollX * object.scrollFactorX)) - (objectW * object.originX);
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var objectY = (object.y - (scrollY * object.scrollFactorY)) - (objectH * object.originY);
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var tx = (objectX * mva + objectY * mvc + mve);
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var ty = (objectX * mvb + objectY * mvd + mvf);
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var tw = ((objectX + objectW) * mva + (objectY + objectH) * mvc + mve);
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var th = ((objectX + objectW) * mvb + (objectY + objectH) * mvd + mvf);
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var cullW = cameraW + objectW;
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var cullH = cameraH + objectH;
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if (tx > -objectW || ty > -objectH || tx < cullW || ty < cullH ||
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tw > -objectW || th > -objectH || tw < cullW || th < cullH)
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{
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culledObjects.push(object);
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}
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}
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return culledObjects;
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};
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module.exports = Cull;

‎v3/src/camera/components/Destroy.js‎

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var Destroy = function ()
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{
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this._bounds = undefined;
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this.matrix = undefined;
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this.culledObjects = [];
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this.scene = undefined;
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};
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module.exports = Destroy;

‎v3/src/camera/components/Fade.js‎

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var Fade = function (duration, red, green, blue, force)
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{
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if (red === undefined) { red = 0.0; }
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if (green === undefined) { green = 0.0; }
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if (blue === undefined) { blue = 0.0; }
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if (!force && this._fadeAlpha > 0.0)
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{
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return;
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}
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this._fadeRed = red;
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this._fadeGreen = green;
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this._fadeBlue = blue;
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if (duration <= 0)
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{
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duration = Number.MIN_VALUE;
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}
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this._fadeDuration = duration;
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this._fadeAlpha = Number.MIN_VALUE;
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};
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module.exports = Fade;

‎v3/src/camera/components/Flash.js‎

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var Flash = function (duration, red, green, blue, force)
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{
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if (!force && this._flashAlpha > 0.0)
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{
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return;
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}
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if (red === undefined) { red = 1.0; }
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if (green === undefined) { green = 1.0; }
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if (blue === undefined) { blue = 1.0; }
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this._flashRed = red;
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this._flashGreen = green;
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this._flashBlue = blue;
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if (duration <= 0)
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{
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duration = Number.MIN_VALUE;
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}
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this._flashDuration = duration;
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this._flashAlpha = 1.0;
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};
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module.exports = Flash;

‎v3/src/camera/components/PreRender.js‎

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var PreRender = function ()
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{
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var width = this.width;
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var height = this.height;
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var zoom = this.zoom;
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var matrix = this.matrix;
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var originX = width / 2;
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var originY = height / 2;
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var follow = this._follow;
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if (follow !== null)
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{
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originX = follow.x;
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originY = follow.y;
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this.scrollX = originX - width * 0.5;
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this.scrollY = originY - height * 0.5;
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}
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if (this.useBounds)
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{
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var bounds = this._bounds;
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var boundsX = bounds.x;
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var boundsY = bounds.y;
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var boundsR = Math.max(bounds.right - width, width);
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var boundsB = Math.max(bounds.bottom - height, height);
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if (this.scrollX < boundsX)
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{
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this.scrollX = boundsX;
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}
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if (this.scrollX > boundsR)
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{
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this.scrollX = boundsR;
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}
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if (this.scrollY < boundsY)
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{
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this.scrollY = boundsY;
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}
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if (this.scrollY > boundsB)
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{
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this.scrollY = boundsB;
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}
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}
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if (this.roundPixels)
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{
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this.scrollX = Math.round(this.scrollX);
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this.scrollY = Math.round(this.scrollY);
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}
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matrix.loadIdentity();
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matrix.translate(this.x + originX, this.y + originY);
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matrix.rotate(this.rotation);
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matrix.scale(zoom, zoom);
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matrix.translate(-originX, -originY);
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matrix.translate(this._shakeOffsetX, this._shakeOffsetY);
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};
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module.exports = PreRender;

‎v3/src/camera/components/RemoveBounds.js‎

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var RemoveBounds = function ()
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{
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this.useBounds = false;
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this._bounds.setEmpty();
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return this;
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};
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module.exports = RemoveBounds;

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